Water-jacket for explosive-engines.



No. 665,64I. Patented m. a, 19m.

' c;- E. KEMP.

WATER JACKET FOR EXPLOSIVE ENGINES.

(Appli atiun flied. Apr. 1'4, 1900.)

(In Iudel.)

UNITED STATES CHARLES E. KEMP, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE-HALF TO CLARENCE M. KEMP, OF SAME PLACE.

WATER-JACKET FOR EXPLOSIVE=E NGINES.

SPECIFICATION forming part of Letters Patent No. 665,641, dated January 8, 1901.

Application filed April 1'7, 1900. Serial No. 13,216. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES E. KEMP, a citizen of the United States, residing at Baltimore, Maryland, have invented certain new and useful Improvements in Water-Jackets for Explosive or other Engines, of which the following is a specification.

This invention relates to means for automatically controlling the supply to and draining the water from the water-jackets of engine-cylinders, and has for its object to provide means actuated by a movable part of the engine and cooperating with the water supply and drain valves leading to and from the water-jacket in such manner that when the engine is stopped the supply of water to the Water-jacket will be. automatically cut off and the water in the water-jacket will be drained therefrom, and, conversely, when the engine is put in operation the water-inlet will be automatically opened to admit water to the water-jacket and the water-drainage will be closed.

To this end my invention consists, broadly, in providing means actuated by a moving part of the engine for automatically controlling the inlet and outlet of the water to the jacket, the arrangement being such that when the engine is brought to a state of rest the water-supply will be out off and drained from the water-jacket and when the engine is put in operation the drainage-cock will be closed and the water-inlet opened.

For the purpose of this description reference is had to the accompanying drawings, forming a part of this specification, wherein Figure 1 is a view in side elevation of an engine equipped with my invention. Fig. 2 is a detail top plan view of the mechanism actuated by the governor for shifting the valves; and Fig. 3 is a view in elevation of the parts shown in Fig. 2, taken at a right angle to Fig. 1.

For the sake of illustration I have shown a simple embodiment of my invention as ap-v municating with one end of the water-jacket is a water-supply pipe 4, leading from any suitable source of supply,'and communicating with the outer end of the water-jacket is a drainage-pipe 5, which may lead to a drain or sewer pipe receptacle or to any suitable point for discharging the water drawn off from the water-jacket. Arranged in the supply-pipe4 and the drain-pipe 5, respectively, are valves 6 and 7, to the stems of which are fixed levers Sand 9, the outer ends of which are connected by a link 10, the arrangement being such that the two valves 6 and 7 are caused to move in unison, and when the valve 6 is open the valve 7 will be closed, and vice versa.

Pivotally connected to the link 10 is one end of a connecting-rod 11, the other end of which is connected to one arm of a bell-crank lever 12, pivoted to a pedestal or other suitable fixed support 13. On the other arm of the bell-crank lever are fixed two projections, preferably consisting of pins 14 and 15, about which are loosely arranged antifrictionsleeves 16.

Mounted on the engine-shaft 2 is a sleeve 17, that normally rotates with said shaft, and said sleeve is provided on its outer end with a disk or annular flange 18, that rotates between the two projections 14 and 15 on the bell-crank lever 12. The sleeve 17 is provided with a diagonal or inclined slot 19, into which projects a pin 20, fixed on the engineshaft 2. On the sleeve are two fixed projections 21 and 22. Pivoted to the fly-wheel 3 is a bell-crank lever 23, on the end of one arm of which is a governor ball or weight 24, and on the end of the other arm of said bellcrank lever is a laterally-projecting pin 25, that is disposed between the two projections 21 and 22 on the sleeve 17. A coiled spring 26 is attached at one end to the fly-wheel 3 and at its other end to the governor-weight 24c and operates to draw the governor-weight toward the engine-shaft or the center of the fiy-wheel.

The operation of the described mechanism is as follows: When the engine is put in operation, the governor-weight 24 is thrown outward by centrifugal force, oscillating the bellcrank lever 23 about its pivot and causing the pin 25 to engage the projection 21 and give to the sleeve 17 a partial rotation in the direction of the arrow 27. As the sleeve is rotated in the directionindicated the inclined walls of the slot 19 will ride on the pin 20 and move the sleeve inward on the shaft 2 and with it the annular flange 1S, and the latter will engage the projection 14: on the bellcrank lever 12 and oscillate the latter about its pivot. This movement of the bell-crank lever 12 will draw the connecting-rod 11 toward the engine-shaft and through the medium of the link 10, and the levers 8 and 9 will simultaneouslyopen the inlet-valve 6 and close the drain-valve 7, thus permitting water to flow into the waterjacket. When the engine is stopped, however, the spring 26 will draw the governor-weight toward the center of the wheel, thereby oscillating the bellcrank lever 23 and causing the pin 25 to engage the projection 22 and give to the sleeve 17 a partial rotation in the direction of the arrow 28, thus. moving the sleeve outward on the engine-shaft and causing the annular flange 18 to engage the projection 15 on the bell-crank lever 12 and oscillate the latter in the opposite direction to that before described, and through the medium of the connecting-rod 11, link 10, and levers 8 and 9, closing the valve 6 and opening the valve 7. The supply of Water is thus shut off from the water-jacket and the water left in said jacket is drained off. 30 is the outlet-pipe for the water after it has cooled the cylinder. This pipe in some instances is connected to an elevator storage-tank, whose supply of water is to be used over and over again in circulation around the engine-cylinder, as is common. It frequently happens that the engineer or engine attendant through in advertence, carelessness, or forgetfulness neglects to drain off the water from the water-jacket when the engine is stopped, and in cold weather the water is apt to freeze and burst the jacket; but such a result is impossible in an engine equipped with my invention, as the watersupply is automatically and with certainty cut off from the water-jacket and the latter drained whenever the engine comes to a state of rest. In like manner the water is automatically admitted to the water-jacket whenever the engine is put into operation.

I have shown my invention applied to a well-known type of engine; but it will be manifest that it may be applied to every known type of engine employing a Waterjacket. I also wish it to be understood that I do not limit myself to the exact arrangement of valves shown or the precise means employed for operating them, for many different arrangements of the valves may be adopted, and they may be actuated by any convenient moving part of the engine or mechanism operated by the engine. Engines of this character sometimes have an elevated storage-tank of water to supply the water for keeping the cylinder cooled, and in such cases two connections are made to such tank where by a circulation obtains. In connections of this character both pipes are valved and link connections made to both valves, whereby both valves may be termed inlet-valves and be operated the same as the one inletvalve, otherwise all the stored water in tank would be drained-off through the drainagevalve, which frequently is not desirable.

Having described my invention, what I claim is l. The combination with the water-jacket of an engine, of means actuated by a moving part of the engine for automatically cutting off the supply of water to the waterjacket and draining the latter when the engine is brought to a state of rest, substantially as described.

2. The combination with the water-jacket of an engine, of means actuated by a moving part of the engine for automatically cutting off the supply of water to the waterjacket and draining the latter when the engine is brought to a state of rest and operating when the engine is put into operation to admit water to the water-jacket, substantially as described.

3. The combination with the water-jacket of an engine, of a valved supply-pipe and a valved drain-pipe therefor, means for simultaneously opening the drain and closing the supply pipe and vice versa, and mechanism actuated by a moving part of the engine for operating the said' supply and drain valves, substantially as described.

4- The combination with the water-jacket of an engine, of a valved supply-pipe and a valved drain-pipe therefor, means for simultaneously opening the drain and closing the supply pipe and vice versa, an engine-governor, and mechanism actuated by the governor for operating the said supply and drain valves, substantially as described.

5. The combination with the water-jacket of an engine, of a valved supply-pipe and a valved drain-pipe therefor, mechanism for simultaneously opening the drain and closing the supply pipe and vice versa, an enginegovernor, and mechanism actuated by the governor for operating the valve-controlling mechanism to open and hold open the supplyvalve and close the drain-valve while the engine is running and close the supply-valve and open the drain-valve when the engine is at rest, substantially as described.

6. The combination with the water-jacket of an engine, of a valved supply-pipe and valved drain-pipe therefor, mechanism for simultaneously opening the drain and closing the supply pipe and vice versa, a diagonallyslotted sleeve rotatably mounted on the engine shaft and provided with an annular flange, a pin fixed on the engine-shaft and engaging said diagonal slot, two projections on said sleeve, a bell-crank lever pivoted to a fixed support and provided at one end with two projections between which the annular flange is disposed, a connecting-rod connect- IIO my hand in presence of two subscribing witnesses.

CHARLES E. KEMP.

Witnesses:

W. WALLACE KEMP, JOHN W. GERHARDT. 

